{"trustable":true,"prependHtml":"\u003cstyle type\u003d\u0027text/css\u0027\u003e\n .input, .output {\n border: 1px solid #888888;\n }\n .output {\n margin-bottom: 1em;\n position: relative;\n top: -1px;\n }\n .output pre, .input pre {\n background-color: #EFEFEF;\n line-height: 1.25em;\n margin: 0;\n padding: 0.25em;\n }\n \u003c/style\u003e\n \u003clink rel\u003d\"stylesheet\" href\u003d\"//codeforces.org/s/96598/css/problem-statement.css\" type\u003d\"text/css\" /\u003e\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript type\u003d\"text/javascript\" async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS_HTML-full\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"\u003cp\u003e\u003cspan class\u003d\"tex-font-style-underline\"\u003eTattah is asleep if and only if Tattah is attending a lecture.\u003c/span\u003e This is a well-known formula among Tattah\u0027s colleagues.\u003c/p\u003e\u003cp\u003eOn a Wednesday afternoon, Tattah was attending Professor HH\u0027s lecture. At \u003cspan class\u003d\"tex-font-style-tt\"\u003e12:21\u003c/span\u003e, right before falling asleep, he was staring at the digital watch around Saher\u0027s wrist. He noticed that the digits on the clock were the same when read from both directions i.e. a palindrome.\u003c/p\u003e\u003cp\u003eIn his sleep, he started dreaming about such rare moments of the day when the time displayed on a digital clock is a palindrome. As soon as he woke up, he felt destined to write a program that finds the next such moment.\u003c/p\u003e\u003cp\u003eHowever, he still hasn\u0027t mastered the skill of programming while sleeping, so your task is to help him.\u003c/p\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cp\u003eThe first and only line of the input starts with a string with the format \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eHH:MM\u003c/span\u003e\" where \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eHH\u003c/span\u003e\" is from \"\u003cspan class\u003d\"tex-font-style-tt\"\u003e00\u003c/span\u003e\" to \"\u003cspan class\u003d\"tex-font-style-tt\"\u003e23\u003c/span\u003e\" and \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eMM\u003c/span\u003e\" is from \"\u003cspan class\u003d\"tex-font-style-tt\"\u003e00\u003c/span\u003e\" to \"\u003cspan class\u003d\"tex-font-style-tt\"\u003e59\u003c/span\u003e\". Both \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eHH\u003c/span\u003e\" and \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eMM\u003c/span\u003e\" have exactly two digits.\u003c/p\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cp\u003ePrint the palindromic time of day that comes soonest after the time given in the input. If the input time is palindromic, output the soonest palindromic time after the input time.\u003c/p\u003e"}},{"title":"Examples","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e12:21\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e13:31\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}},{"title":"","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e23:59\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e00:00\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}